Piston-Based Pressure Reduction Structure Used for Water-Cooling Radiator, and Water-Cooling Radiator

ABSTRACT

The invention relates to the technical field of heat dissipation, in particular to a piston-based pressure reduction structure used for a water-cooling radiator, and a water-cooling radiator. By adoption of the piston-based pressure reduction structure used for a water-cooling radiator, and the water-cooling radiator, the problem of liquid leakage caused by an excessively high pressure in existing water-cooling radiators is solved.

BACKGROUND OF THE INVENTION 1. Technical Field

The invention relates to the technical field of heat dissipation, in particular to a piston-based pressure reduction structure used for a water-cooling radiator, and a water-cooling radiator.

2. Description of Related Art

Integrated water-cooling radiators are generally of an airtight structure to allow water-cooling liquid to circulate therein. However, after the radiators operate in a high-temperature environment for a period of time, a high pressure will be generated in the radiators; and once the high pressure in the radiators reaches a certain value, poor-sealing parts of the radiators will be cracked, which in turn results in liquid leakage of the radiators. In the prior art, the sealing performance or internal pressure resistance of systems is improved to prevent liquid leakage. However, existing water-cooling radiators have the following defects:

1. Although the maturity of the manufacturing process has decreased the leakage rate, the leakage risk has yet to be eradicated, and computer hardware will be burned once a liquid leakage occurs.

2. If the interior of the radiators is in a high-pressure state for a long time, the components such as seal rings will be in a fatigue state all the time, and the leakage probability becomes larger gradually over time.

3. Pure sealing reinforcement will make the radiators more complex and increase costs and also limits design and manufacturing in many aspects.

BRIEF SUMMARY OF THE INVENTION

The objective of the invention is to overcome the disadvantages and defects of the prior art by providing a piston-based pressure reduction structure used for a water-cooling radiator, and the water-cooling radiator, so as to prevent the internal pressure of the water-cooling radiator from being too high, which may otherwise cause liquid leakage.

The invention is implemented through the following technical solution:

A piston-based pressure reduction structure used for a water-cooling radiator comprises a shell and a piston structure, wherein the piston structure is movably arranged in the shell; a pressure release hole is formed in one end of the shell, and an inner cavity of the shell is communicated with cooling liquid in the water-cooling radiator via the pressure release hole; a vent hole communicated with the external atmosphere is formed in the other end of the shell; the side wall of the piston structure is tightly attached to the inner wall of the shell and is slidably connected with the inner wall of the shell; and the piston structure is used for isolating the vent hole from the pressure release hole.

Wherein, the shell is in the shape of a cylindrical tube, an elliptical tube, a rectangular tube, a square tube, a polygonal tube or a specially-shaped tube; the side wall of the piston structure is tightly attached to the inner wall of the shell and is slidably connected with the inner wall of the shell; the piston-based pressure reduction structure further comprises a piston limiting part which is connected with an end, away from the pressure release hole, of the shell; and the vent hole is formed in an end face of the piston limiting part.

Wherein, the piston structure is an integrated piston or a split-type piston, the split-type piston comprises a piston body and a plurality of piston rings, a plurality of ends are arranged on the side wall of the piston body, and each piston ring is arranged between the two corresponding adjacent ends.

The invention further provides a water-cooling radiator. The water-cooling radiator comprises a water cooler, a water block and a water pump, wherein the water cooler is communicated with the water block; cooling liquid in the water-cooling radiator absorbs heat via the water block, and the cooling liquid is delivered into the water cooler by the water pump; and the cooling liquid in the water-cooling radiator flows through the water cooler to be cooled. The water-cooling radiator further comprises a piston-based pressure reduction structure which comprises a shell and piston structure, wherein the piston structure is movably arranged in the shell; a pressure release hole is formed in one end of the shell, and an inner cavity of the shell is communicated with the cooling liquid in the water-cooling radiator via the pressure release hole; a vent hole communicated with the external atmosphere is formed in the other end of the shell; the side wall of the piston structure is tightly attached to the inner wall of the shell and is slidably connected with the inner wall of the shell; and the piston structure is used for isolating the vent hole from the pressure release hole.

Wherein, the water cooler comprises a water cooler body and a water chamber communicated with the water cooler body, the shell is arranged in the water chamber, and the inner cavity of the shell is communicated with the water chamber via the pressure release hole.

Wherein, the shell is connected into the water block or is integrally formed in the water block, and the cooling liquid in the water block flows through the inner cavity of the shell via the pressure release hole.

Wherein, the shell and the water cooler are connected or are integrally formed, and the cooling liquid in the water cooler flows through the inner cavity of the shell via the pressure release hole.

Wherein, the water cooler is provided with a first water channel communicated with the interior of the water cooler, and an end, close to the pressure release hole, of the shell is communicated with the first water channel; and the cooling liquid in the water cooler flows through the inner cavity of the shell via the pressure release hole and the first water channel.

Wherein, the water block is provided with a second water channel communicated with the interior of the water block, and an end, close to the pressure release hole, of the shell is communicated with the second water channel; and the cooling liquid in the water block flows through the inner cavity of the shell via the pressure release hole and the second water channel.

Wherein, the water block and the water cooler are communicated via a first hose and a second hose which are located therebetween, wherein an end, close to the pressure release hole, of the shell is communicated with the first hose or the second hose, and the cooling liquid in the first hose or the second hose flows through the inner cavity of the shell via the pressure release hole.

The invention has the following beneficial effects:

The pressure in the water-cooling radiator is prevented from becoming too high, so that liquid leakage is avoided. Particularly, the piston-based pressure reduction structure is arranged to be communicated with the cooling liquid in the water-cooling radiator; generally, the piston structure is located at a position close to the pressure release hole, so that when the pressure in the water-cooling radiator is too high, the internal pressure will push the piston structure away from the pressure release hole so as to be released, and thus, the pressure in the water-cooling radiator is fundamentally prevented from becoming too high.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The invention is further explained below with reference to the accompanying drawings. However, embodiments in these drawings are not intended to limit the invention. For those ordinarily skilled in this field, other drawings can be obtained based on the following drawings without creative work.

FIG. 1 is a structural view of an internal pressure reduction valve of a piston-based pressure reduction structure of the invention.

FIG. 2 is an external view of an external pressure reduction valve of the piston-based pressure reduction structure of the invention.

FIG. 3 is an exploded view of a split-type piston.

FIG. 4 is a view of the water-cooling radiator in a normal state of the invention.

FIG. 5 is a view of the water-cooling radiator in a pressure release state of the invention.

FIG. 6 is an exploded view of the internal pressure reduction valve of the water-cooling radiator of the invention.

FIG. 7 is an exploded view of another water-cooling radiator provided with the internal pressure reduction valve of the invention.

FIG. 8 is an exploded view of another water-cooling radiator provided with the internal pressure reduction valve of the invention.

FIG. 9 is a structural view of another water-cooling radiator provided with the external pressure reduction valve of the invention.

FIG. 10 is a structural view of another water-cooling radiator provided with the external pressure reduction valve of the invention.

FIG. 11 is a structural view of another water-cooling radiator provided with the external pressure reduction valve of the invention.

FIG. 12 is a structural view of another water-cooling radiator provided with the external pressure reduction valve of the invention.

FIG. 13 is a structural view of another water-cooling radiator provided with the external pressure reduction valve of the invention.

1, piston-based pressure reduction structure; 11, shell; 12, pressure release hole; 13, vent hole; 14, piston limiting part;

2, piston structure; 21, piston body; 22, piston ring; 23, end;

3, water cooler; 31, water cooler body; 32, water chamber; 33, first water channel; 34, second water channel; 35, first hose; 36, second hose;

4, water block.

DETAILED DESCRIPTION OF THE INVENTION

Implementations of the invention are explained below with specific embodiments. Those skilled in this field can easily appreciate other advantages and effects of the invention by referring to the contents disclosed below. The invention can also be implemented or applied by means of other specific embodiments. All details in the description can be modified or changed in various ways based on different views and for different applications without deviating from the spirit of the invention.

By the way, structures shown in these drawings are only used to provide a better understanding and reference for those familiar with the contents in the description in cooperation with these contents and should not be regarded as limits to the implantations of the invention, thereby not possessing any essential technical significance. Any structural modifications or amendments achieved without affecting the effects and objectives to be fulfilled by the invention should also fall within the scope defined by the technical contents of the invention.

Embodiment 1

As shown in FIG. 1, a piston-based pressure reduction structure used for a water-cooling radiator comprises a shell 11 and a piston structure 2, wherein the piston structure 2 is movably arranged in the shell 11. A pressure release hole 12 is formed in one end of the shell 11, and an inner cavity of the shell 11 is communicated with cooling liquid in the water-cooling radiator via the pressure release hole 12. A vent hole 13 communicated with the external atmosphere is formed in the other end of the shell 11. The side wall of the piston structure 2 is tightly attached to the inner wall of the shell 11 and is slidably connected with the inner wall of the shell 11. The piston structure 2 is used for isolating the vent hole 13 from the pressure release hole 12.

In this solution, the position of the piston structure 2 in a normal state is shown in FIG. 4; as the internal pressure, such as an air pressure or a hydraulic pressure, can be applied to one end face of the piston structure 2 via the pressure release hole 12, the piston structure 2 can be pushed by this pressure to an end, close to the vent hole 13, of the shell 11 from an end, close to the pressure release hole 12, of the shell 11, and the position of the piston structure 2 at this moment is shown in FIG. 5. In this way, the external atmospheric pressure and the internal pressure of the water cooler 3 are balanced, and liquid leakage of the water cooler 3 under high pressure is fundamentally eradicated.

Preferably, as shown in FIG. 1 and FIG. 2, the shell 11 is in, but is not limited to, the shape of a cylindrical tube, an elliptical tube, a rectangular tube, a square tube, a polygonal tube, or a specially-shaped tube. The shell 11 can also be in other shapes not mentioned in this embodiment, and these shapes also fall within the scope defined by the solution. The piston-based pressure reduction structure 1 further comprises a piston limiting part 14 connected with the end, away from the pressure release hole 12, of the shell 11. The vent hole 13 is formed in an end face of the piston limiting part 14. In this embodiment, the piston limiting part 14 is matched with the shell 11 through screwing, buckling, ultrasonic welding, thread tightening or gluing, or in other connection ways, so that the assembling strength of the piston limiting part 14 and the shell 11 is ensured, and the piston structure 2 is prevented from being pushed away from the shell 11 by an excessively high pressure.

Preferably, as shown in FIG. 3, the piston structure 2 is an integrated piston or a split-type piston, wherein the split-type piston comprises a piston body 21 and a plurality of piston rings 22, a plurality of ends 23 are arranged on the side wall of the piston body 21, and each piston ring 22 is located between the two corresponding adjacent ends 23. Users adopt the split-type piston or the integrated piston to adapt to water-cooling radiators 3 of different models or types. As the piston rings 22 of the split-type piston can be replaced, the split-type piston is more suitable for higher-pressure water coolers 3.

Embodiment 2

As shown in FIGS. 4, 5, and 6, a water-cooling radiator comprises a water cooler 3, a water block 4, and a water pump, wherein the water cooler 3 is communicated with the water block 4. According to the water-cooling radiator, cooling liquid absorbs heat via the water block 4, and the cooling liquid is delivered by the water pump into the water cooler 3; and the cooling liquid in the water-cooling radiator flows through the water cooler 3 to be cooled. The water-cooling radiator further comprises a piston-based pressure reduction structure 1 which comprises a shell 11 and a piston structure 2, wherein the piston structure 2 is movably arranged in the shell 11; a pressure release hole 12 is formed in one end of the shell 11, and an inner cavity of the shell 11 is communicated with the cooling liquid in the water-cooling radiator via the pressure release hole 12; a vent hole 13 communicated with the external atmosphere is formed in the other end of the shell 11; the side wall of the piston structure 2 is tightly attached to the inner wall of the shell 11 and is slidably connected with the inner wall of the shell 11; and the piston structure 2 is used for isolating the vent hole 13 form the pressure release hole 12.

Preferably, the water cooler 3 comprises a water cooler body 31 and a water chamber 32 communicated with the water cooler body 31. The shell 11 is arranged in the water chamber 32. The inner cavity 11 of the shell 11 is communicated with the water chamber 32 via the pressure release hole 12.

In this solution, the water chamber 32 is a hollow structure used for containing the cooling liquid, and the piston-based pressure reduction structure 1 is arranged in the water chamber 32 of the water cooler 3 and thus has no influence on the volume of the water cooler 3. The water cooler 3 is filled with the cooling liquid, and the shell 11 is communicated with the interior of the water cooler 3, so that the cooling liquid in the water cooler 3 can freely enter or come out of the inner cavity of the shell 11 via the pressure release hole 12, and the position of the piston structure 2 in a normal state is shown in FIG. 4. The inner cavity of the shell 11 is partitioned by the piston structure 2 into two parts; when the temperature and pressure of the cooling liquid in the water cooler 3 are increased, the high pressure in the water cooler 3 pushes the piston structure 2 to an end, close to the vent hole 13, of the shell 11 from an end, close to the pressure release hole 12, of the shell 11, and the position of the piston structure 2 at this moment is shown in FIG. 5. In this way, the external atmospheric pressure and the internal pressure of the water cooler 3 are balanced, and liquid leakage of the water cooler 3 under high pressure is fundamentally eradicated.

Embodiment 3

As shown in FIG. 7, this embodiment differs from embodiment 2 in the following aspects: the shell 11 is connected into the water block 4 or is integrally formed in the water block 4, and the cooling liquid in the water block 4 flows through the inner cavity of the shell 11 via the pressure release hole 12; and in addition, the piston limiting part 14 is a cover plate structure and is provided with a plurality of through holes 11 allowing screws to penetrate through, the shell 11 is provided with corresponding screw holes, and the piston limiting part 14 is installed on the shell 11 with screws. Compared with embodiment 2, the shell 11 is arranged at a different position in this embodiment, while the pressure release way and the pressure release effect of this embodiment are the same as those of embodiment 2 and will not be detailed anymore herein.

Embodiment 4

As shown in FIG. 8, this embodiment differs from embodiment 2 in the following aspects: the shell 11 and the water cooler 3 are connected or are integrally formed, and the cooling liquid in the water cooler 3 flows through the inner cavity of the shell 11 via the pressure release hole 12; and in addition, the piston limiting part 14 is a cover plate structure and is provided with a plurality of through holes 11 allowing screws to penetrate through, the shell 11 is provided with corresponding screw holes, and the piston limiting part 14 is installed on the shell 1 with screws. Compared with embodiment 2 and embodiment 3 , the shell 11 is arranged at a different position in this embodiment, while the pressure release way and the pressure release effect of this embodiment are the same as those of embodiment 2 and embodiment 3 and will not be detailed anymore herein.

Embodiment 5

As shown in FIGS. 9, 10, and 11, the water-cooling radiator in this embodiment comprises a water cooler 3, a water block 4, a water pump and the piston-based pressure reduction structure 1, wherein the water cooler 3 is provided with a first water channel 33 communicated with the interior of the water cooler 3, and an end, close to the pressure release hole 12, of the shell 11 is communicated with the first water channel 33; and the water cooling liquid in the water cooler 3 flows through the inner cavity of the shell 11 via the pressure release hole 12 and the first water channel 33. In this embodiment, the first water channel 33 is formed in one end of the water cooler 3, or in one side of the water cooler 3 or in the water cooler 3, and no matter which one of these three communication ways is adopted, the piston-based pressure reduction structure 1 fulfills the same pressure release effect. In addition, except the difference in the connection position of the first water channel 33 and the water cooler 3, the three ways are identical in other structural aspects and will not be detailed anymore herein.

Embodiment 6

As shown in FIG. 12, this embodiment differs from embodiment 5 in the following aspects: the water block 4 is provided with a second water channel 34 communicated with the interior of the water block 4, and an end, close to the pressure release hole 12, of the shell is communicated with the second water channel 34; and the cooling liquid in the water block 4 flows through the inner cavity of the shell 11 via the pressure release hole 12 and the second water channel 34. Different from embodiment 5, the piston-based pressure reduction structure 1 is communicated with the water block 4 in this embodiment, while the pressure release way and the pressure release effect of this embodiment are the same as those of embodiment 5 and will not be detailed anymore herein.

Embodiment 7

As shown in FIG. 13, this embodiment differs from embodiment 5 and embodiment 6 in the following aspects: the water block 4 and the water cooler 3 are communicated via a first hose 35 and a second hose 36 which are located therebetween, and an end, close to the pressure release hole 12, of the shell 11 is communicated with the first hose 35 or the second hose 36; and the cooling liquid in the first hose 35 or the second hose 36 flows through the inner cavity of the shell 11 via the pressure release hole 12. Different from embodiment 5 and embodiment 6, the piston-based pressure reduction structure 1 is communicated with the first hose 35 or the second hose 36 in this embodiment, while the pressure release way and the pressure release effect of this embodiment are the same as those of embodiment 5 and embodiment 6 and will not be detailed anymore herein.

According to the piston-based pressure reduction structure used for the water-cooling radiator, and the water-cooling radiator in this embodiment, the piston-based pressure reduction structure 1 is arranged to be communicated with the cooling liquid in the water-cooling radiator; generally, the piston structure 2 is located at a position close to the pressure release hole 12, so that when the pressure in the water-cooling radiator is too high, the internal pressure will push the piston structure 2 away from the pressure release hole 12 so as to be released, and thus, the pressure in the water-cooling radiator is fundamentally prevented from becoming too high.

By the way, the above embodiments are only used to explain the technical solution of the invention and are not intended to limit the protection scope of the invention. In spite of the detailed description, with reference to these preferred embodiments, of the invention, those ordinarily skilled in this field would appreciate that various modifications or equivalent substitutes of the technical solution can be made without deviating from its essence and scope 

What is claimed is:
 1. A piston-based pressure reduction structure used for a water-cooling radiator, comprising: a shell (11) and a piston structure (2), wherein the piston structure (2) is movably arranged in the shell (11); a pressure release hole (12) is formed in one end of the shell (11), and an inner cavity of the shell (11) is communicated with cooling liquid in a water-cooling radiator via the pressure release hole (12); a vent hole (13) communicated with an external atmosphere is formed in another end of the shell (11); a side wall of the piston structure (2) is tightly attached to an inner wall of the shell (11) and is slidably connected to the inner wall of the shell (11); and the piston structure (2) is used for isolating the vent hole (13) from the pressure release hole (12).
 2. The piston-based pressure reduction structure used for a water-cooling radiator according to claim 1, wherein the shell (11) is in the shape of a cylindrical tube, an elliptical tube, a rectangular tube, a square tube, a polygonal tube or a special-shaped tube; the piston-based pressure reduction structure further comprises a piston limiting part (14) connected with an end, away from the pressure release hole (12), of the shell (11); and the vent hole (13) is formed in an end face of the piston limiting part (14).
 3. The piston-based pressure reduction structure used for a water-cooling radiator according to claim 1, wherein the piston structure (2) is a integrated piston or a split-type piston, the split-type piston comprises a piston body (21) and a plurality of piston rings (22), a plurality of ends (23) are arranged on a side wall of the piston body (21), and each said piston ring (22) is located between the two corresponding adjacent ends (23).
 4. A water-cooling radiator, comprising: a water cooler (3), a water block (4) and a water pump, wherein the water cooler (3) is communicated with the water block (4); cooling liquid in the water-cooling radiator absorbs heat via the water block (4), and the cooling liquid delivered into the water cooler (3) by the water pump; the cooling liquid in the water-cooling radiator flows through the water cooler (3) to be cooled; the water-cooling radiator further comprises a piston-based pressure reduction structure (1), and the piston-based pressure reduction structure (1) comprises: a shell (11) and a piston structure (2), wherein the piston structure (2) is movably arranged in the shell (11); a pressure release hole (12) is formed in one end of the shell (11), and an inner cavity of the shell (11) is communicated with the cooling liquid in the water-cooling radiator via the pressure release hole (12); a vent hole (13) communicated with an external atmosphere is formed in another end of the shell (11); a side wall of the piston structure (2) is tightly attached to an inner wall of the shell (11) and is slidably connected to the inner wall of the shell (11); and the piston structure (2) is used for isolating the vent hole (13) from the pressure release hole (12).
 5. The water-cooling radiator according to claim 4, wherein the water cooler (3) comprises a water cooler body (31) and a water chamber (32) communicated with the water cooler body (31), the shell (11) is arranged in the water chamber (32), and the inner cavity of the shell (11) is communicated with the water chamber (32) via the pressure release hole (12).
 6. The water-cooling radiator according to claim 4, wherein the shell (11) is connected into the water block (4) or is integrally formed in the water block (4), and the cooling liquid in the water block (4) flows through the inner cavity of the shell (11) via the pressure release hole (12).
 7. The water-cooling radiator according to claim 4, wherein the shell (11) and the water cooler (3) are connected or are integrally formed, and the cooling liquid in the water cooler (3) flows through the inner cavity of the shell (11) via the pressure release hole (12).
 8. The water-cooling radiator according to claim 4, wherein the water cooler (3) is provided with a first water channel (33) communicated with an interior of the water cooler (3), and an end, close to the pressure release hole (12), of the shell (11) is communicated with the first water channel (33); and the cooling liquid in the water cooler (3) flows through the inner cavity of the shell (11) via the pressure release hole (12) and the first water channel (33).
 9. The water-cooling radiator according to claim 4, wherein the water block (4) is provided with a second water channel (34) communicated with an interior of the water block (4), and an end, close to the pressure release hole (12), of the shell (11) is communicated with the second water channel (34); and the cooling liquid in the water block (4) flows through the inner cavity of the shell (11) via the pressure release hole (12) and the second water channel (34).
 10. The water-cooling radiator according to claim 4, wherein the water block (4) and the water cooler (3) are communicated via a first hose (35) and a second hose (36) which are located therebetween, an end, close to the pressure release hole (12), of the shell (11) is communicated with the first hose (35) or the second hose (36), and the cooling liquid in the first hose (35) or the second hose (36) flows through the inner cavity of the shell (11) via the pressure release hole (12). 